Invisible Glyphs: Discovery kicks off a three-part side quest chain in Arknights: Endfield that sends you investigating mysterious Landbreaker symbols scattered across The Hub region. The mission involves decoding hidden graffiti, infiltrating an enemy camp, and recovering stolen goods for a frustrated UWST crew member named Satyr.
Quick answer: Reach Authority Level 15, speak to Jouster near the U.W.S.T. billboard at Hub West, then follow the quest markers to the Originium Byproduct Processing Center, clear the Landbreaker camp, retrieve the supplies from the west side of the base, switch off the GP Broadcaster under the tent, and return everything to Satyr.
Unlock requirements and starting location
You need Authority Level 15 before this quest becomes available. Unlike many side missions, Invisible Glyphs: Discovery does not appear automatically in your quest journal. You must physically visit the quest giver to trigger it.
Teleport to the Originium Byproduct Processing Center in Valley IV. Look north toward the U.W.S.T. billboard and climb to the top of it. Jouster, a base security officer, stands there with a green glow above his head. Speaking with him begins the quest.
Scanning the Bonekrusher glyphs
Jouster explains that Landbreakers have been leaving strange drawings on nearby rocks. These turn out to be Bonekrusher glyphs, a secret code the faction uses to communicate. After exhausting the dialogue with Jouster and your companion Fiona, use your scanner on the rock he was studying. The hidden glyph appears once scanned, confirming the markings are genuine.
Investigating the Processing Center
Head to the Originium Byproduct Processing Center with Jouster. You can walk there or simply teleport using the nearby TP Point. Once inside, speak with three UWST Crew Mates stationed in the area. They are positioned close together, so cycling through the conversations is quick.
The final crew member you speak with is Satyr, who is visibly frustrated. Landbreakers have stolen a Smart Performance Booster along with other supplies, and he wants them recovered.
Tracking down the Landbreaker camp
At this stage, the game locks fast travel. You cannot teleport to a nearby TP Point or use Ziplines until you reach the stolen supplies. Follow the quest marker on foot, fighting through groups of Landbreakers along the way. Eventually, you arrive at their base, where enemies appear to be in a state of worship around some central object.
Retrieving the stolen supplies
Step 1: Clear out all Landbreakers in the camp. They attack in waves, so stay mobile and use elemental reactions if your team composition supports them.
Step 2: Search the west side of the base. The stolen goods are hidden underneath piles of storage boxes and debris. Interact with the supplies to collect them.
Step 3: The game prompts you to switch off a GP Broadcaster. Head to the tent located east of the base entrance you used to enter. The radio sits under the tent canopy. Interact with it and review both dialogue options before proceeding.
Returning the supplies to Satyr
With the broadcaster disabled and the supplies in hand, teleport back to the Processing Center TP Point. Find Satyr at his previous location and hand over the recovered goods. He mentions that some explosives are still missing, which sets up the next quest in the chain.
Rewards for completing Invisible Glyphs: Discovery
| Reward | Quantity |
|---|---|
| Oroberyl | 75 |
| T-Creds | 4,250 |
| Intermediate Combat Record | 18 |
| Arms INSP Kit | 14 |
| EXP | 300 |
Unlocking the next quest in the chain
Invisible Glyphs: Investigation does not become available immediately after finishing Discovery. You must wait for a server reset the following day. Once the reset occurs, Jouster sends you a message through the Baker menu. Reading that message automatically starts the second quest, which involves rescuing Jouster from a Landbreaker cave and solving a lever puzzle using the Bonekrusher glyph system you learned about in Discovery.
The full Invisible Glyphs chain consists of three missions: Discovery, Investigation, and Revelation. Each quest builds on the previous one, with Investigation requiring you to interact with Denstack Haze to reveal hidden symbols and Revelation concluding the storyline with a final cave puzzle and boss encounter. Completing all three rewards additional Oroberyl, Protoprisms, and crafting materials.
